*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
html,body{
    height: 100vh;
    background: url("../img/789.jpg") center; /* 首先增加背景图 */
    background-size: 120% auto; /* 设置背景的大小 */
    background-repeat: no-repeat; /* 将背景设置为不重复显示 */
}
header{
    padding-left: 150px;
    padding-right: 150px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
    background-color: #8EC5FC;
    background-image: linear-gradient(62deg, #8EC5FC 0%, #E0C3FC 100%);
    border-style:inset;
    color: aliceblue;
}
header a{
    text-decoration: none;
    color: aliceblue ;

}
header a:hover{
    color: rgba(255,255,255,0.6);
}
main{
    margin-top: 10px;
    margin-left: 120px;
    margin-right: 120px;
}
ol{
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    align-items:center;
    justify-content: space-between;
}
li{
    width: 150px;
    height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    align-content:space-between ;
}
li img{
    width: 150px;
    height: 200px;
    object-fit: cover;
}
